Non-contact detection of low carbon steel using laser generated ultrasound at high temperature

Guo, Ruipeng; Wang, Haitao; Jianyan, Zhang

doi:10.1016/j.ijleo.2017.02.072

Cited by 14 publications

(2 citation statements)

References 13 publications

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“…Non-contact ultrasonic methods have a significant advantage over the conventional acoustic methods. This research area is addressed in [51][52][53][54][55][56], with special attention paid to laser excitation of acoustic signals. In this case, ultrasonic pulses are excited as a result of the absorption of pulsed laser radiation by the near-surface layer of the product being fabricated.…”

Section: Non-contact Ultrasonic Methodsmentioning

confidence: 99%

Development of Innovative Solutions for Intelligent Inspection of Products of Additive Manufacturing for Navy Supply

Kravcov¹,

Svoboda²,

Štoller³

et al. 2020

Challenges to National Defence in Contemporary Geopolitical Situation

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Section: Non-contact Ultrasonic Methodsmentioning

confidence: 99%

Development of Innovative Solutions for Intelligent Inspection of Products of Additive Manufacturing for Navy Supply

Kravcov¹,

Svoboda²,

Štoller³

et al. 2020

Challenges to National Defence in Contemporary Geopolitical Situation

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“…The thickness of low carbon steel was calculated by using the collected longitudinal wave information, which provided a good basis for online thickness detection at high temperatures. Guo et al [20] established a non-contact experimental system to excite Rayleigh waves of materials at high temperatures by point light source and discussed the relationship between wave velocity and temperature. The numerical simulation and experimental results are in good agreement, which provides a basis for the online detection of high-temperature metals.…”

Section: Introductionmentioning

confidence: 99%

High Temperature Mechanical Constants of TC4 alloy Detected by Laser Ultrasonic

Chen

Zhang

et al. 2023

Preprint

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Mechanical constants are the fundamental parameters for characterizing the mechanical properties of materials. Laser ultrasonic is a new non-destructive testing method characterized by long-range and non-contact. It is particularly suitable for detecting the mechanical properties of materials in harsh environments. TC4 alloy is one of the most important alloys for the production of engine blades, which is working at a high temperature of about 300–500℃. In this paper, the mechanical constants (elastic modulus and Poisson's ratio) of TC4 alloy at high temperatures are studied based on the finite element method. The mechanical constants are determined by their relation to the velocity of the ultrasonic wave. The finite element model of the laser-induced multi-mode wave at room temperature is established. Compare with the experimental results, the Rayleigh wave velocity error is 1.70%, and the longitudinal wave velocity error is 1.18%. The numerical results agree well with the experimental results, which confirms the correctness of the model. On this basis, further inversion of elastic modulus and Poisson's ratio of TC4 alloy at high temperature. It is found that elastic modulus and Poisson's ratio of TC4 alloy have a quadratic relationship with temperature. The mechanical constants at high temperatures are predicted, and the relative error is less than 4%. In this paper, the numerical results are in good agreement with the theoretical values, which verifies the validity and reliability of the model. It provides a reference for the further use of laser ultrasonic to determine the mechanical properties of materials at high temperatures.

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Non-destructive characterization of elastic properties on steel plate using laser ultrasound technique under high-temperature atmosphere

Yeh

Jeyaprakash

Yang

2020

Int J Adv Manuf Technol

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Non-contact detection of low carbon steel using laser generated ultrasound at high temperature

Cited by 14 publications

References 13 publications

Development of Innovative Solutions for Intelligent Inspection of Products of Additive Manufacturing for Navy Supply

Development of Innovative Solutions for Intelligent Inspection of Products of Additive Manufacturing for Navy Supply

High Temperature Mechanical Constants of TC4 alloy Detected by Laser Ultrasonic

Non-destructive characterization of elastic properties on steel plate using laser ultrasound technique under high-temperature atmosphere

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